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We discuss new techniques and ideas in mm-wave instrumentation that can be used in CMB (Cosmic Microwave background) polarization experiments. Novel techniques in antenna receiver, beam combining and detector systems have resulted in…

Instrumentation and Methods for Astrophysics · Physics 2024-03-07 Siddharth Savyasachi Malu

Next-generation CMB satellite concepts (LiteBIRD, CORE, PIXIE, PICO) are being proposed to detect the primordial CMB B-mode polarization at large angular scales in the sky for tensor-to-scalar ratio values of ${r \lesssim 10^{-3}}$. Yet…

Cosmology and Nongalactic Astrophysics · Physics 2018-06-05 M. Remazeilles

[Abridged] The LiteBIRD mission aims to measure the Cosmic Microwave Background (CMB) polarization with unprecedented precision, targeting the detection of primordial B modes and a precise determination of the tensor-to-scalar ratio r. A…

Instrumentation and Methods for Astrophysics · Physics 2026-02-05 S. Stellati , F. Piacentini , S. Micheli , A. Novelli , F. Columbro , A. Coppolecchia , P. de Bernardis , S. Masi , M. Najafi , A. Occhiuzzi , L. Pagano , A. Paiella , LiteBIRD Collaboration

We analyse the feasibility of detecting the polarization of the CMB caused by scattering of the remote temperature quadrupole by galaxy clusters with forthcoming CMB polarization surveys. For low-redshift clusters, the signal is strongly…

Cosmology and Nongalactic Astrophysics · Physics 2014-09-24 Alex Hall , Anthony Challinor

CMB-S4 will map the cosmic microwave background to unprecedented precision, while simultaneously surveying the millimeter-wave time-domain sky, in order to advance our understanding of cosmology and the universe. CMB-S4 will observe from…

Instrumentation and Methods for Astrophysics · Physics 2022-08-04 Darcy R. Barron , Amy N. Bender , Ian E. Birdwell , John E. Carlstrom , Jacques Delabrouille , Sam Guns , John Kovac , Charles R. Lawrence , Scott Paine , Nathan Whitehorn

QUBIC (Q \& U Bolometric Interferometer for Cosmology) is an international ground-based experiment dedicated in the measurement of the polarized fluctuations of the Cosmic Microwave Background (CMB). It is based on bolometric…

Instrumentation and Methods for Astrophysics · Physics 2019-12-10 M. Piat , B. Bélier , L. Bergé , N. Bleurvacq , C. Chapron , S. Dheilly , L. Dumoulin , M. González , L. Grandsire , J. -Ch. Hamilton , S. Henrot-Versillé , D. T. Hoang , S. Marnieros , W. Marty , L. Montier , E. Olivieri , C. Oriol , C. Perbost , D. Prêle , D. Rambaud , M. Salatino , G. Stankowiak , J. -P. Thermeau , S. Torchinsky , F. Voisin , P. Ade , J. G. Alberro , A. Almela , G. Amico , L. H. Arnaldi , D. Auguste , J. Aumont , S. Azzoni , S. Banfi , P. Battaglia , E. S. Battistelli , A. Baù , D. Bennett , J. -Ph. Bernard , M. Bersanelli , M. -A. Bigot-Sazy , J. Bonaparte , J. Bonis , A. Bottani , E. Bunn , D. Burke , D. Buzi , A. Buzzelli , F. Cavaliere , P. Chanial , R. Charlassier , F. Columbro , G. Coppi , A. Coppolecchia , G. D'Alessandro , P. de Bernardis , G. De Gasperis , M. De Leo , M. De Petris , A. Di Donato , A. Etchegoyen , A. Fasciszewski , L. P. Ferreyro , D. Fracchia , C. Franceschet , M. M. Gamboa Lerena , K. Ganga , B. García , M. E. García Redondo , M. Gaspard , A. Gault , D. Gayer , M. Gervasi , M. Giard , V. Gilles , Y. Giraud-Heraud , M. Gómez Berisso , M. Gradziel , D. Harari , V. Haynes , F. Incardona , E. Jules , J. Kaplan , A. Korotkov , C. Kristukat , L. Lamagna , S. Loucatos , T. Louis , R. Luterstein , B. Maffei , S. Masi , A. Mattei , A. May , M. McCulloch , M. C. Medina , L. Mele , S. Melhuish , A. Mennella , L. Mousset , L. M. Mundo , J. A. Murphy , J. D. Murphy , F. Nati , C. O'Sullivan , A. Paiella , F. Pajot , A. Passerini , H. Pastoriza , A. Pelosi , M. Perciballi , F. Pezzotta , F. Piacentini , L. Piccirillo , G. Pisano , M. Platino , G. Polenta , R. Puddu , P. Ringegni , G. E. Romero , J. M. Salum , A. Schillaci , C. Scóccola , S. Scully , S. Spinelli , M. Stolpovskiy , F. Suarez , A. Tartari , P. Timbie , M. Tomasi , C. Tucker , G. Tucker , S. Vanneste , D. Viganò , N. Vittorio , B. Watson , F. Wicek , M. Zannoni , A. Zullo

LiteBIRD is a JAXA-led international project aimed at measuring the cosmic microwave background (CMB) polarization with high sensitivity to detect polarization $B$ modes. This detection would provide evidence of inflation. LiteBIRD will…

Instrumentation and Methods for Astrophysics · Physics 2025-05-22 Frederick Matsuda , Shugo Oguri , Yutaro Sekimoto , Aritoki Suzuki , Hayato Takakura , Shingo Kashima

This white paper addresses key challenges for the design of next-decade Cosmic Microwave Background (CMB) experiments, and for assessing their capability to extract cosmological information from CMB polarization. We focus here on the…

Future cosmic microwave background (CMB) polarisation experiments aim to measure an unprecedentedly small signal - the primordial gravity wave component of the polarisation field B-mode. To achieve this, they will analyse huge datasets,…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 D. Sutton , J. A. Zuntz , P. G. Ferreira , M. L. Brown , H. K. Eriksen , B. R. Johnson , A. Kusaka , S. K. Naess , I. K. Wehus

Measurements of the polarization of the cosmic microwave background (CMB) radiation are expected to significantly increase our understanding of the early universe. We present a design for a CMB polarimeter in which a cryogenically cooled…

Astrophysics · Physics 2016-11-17 S. Hanany , T. Matsumura , B. Johnson , T. Jones , J. R. Hull , K. B. Ma

The WMAP satellite has made available high quality maps of the sky in five frequency bands ranging from 22 to 94 GHz, with the main scientific objective of studying the anisotropies of the Cosmic Microwave Background (CMB). These maps,…

Astrophysics · Physics 2009-11-13 J. Delabrouille , J. -F. Cardoso , M. Le Jeune , M. Betoule , G. Fay , F. Guilloux

The CMB polarization is the Everest in the quest to characterize the earliest photons from the Universe. After a long list of ever-decreasing upper limits, a detection of polarization was made in 2002 by the DASI team at ell =~ 500. The…

Instrumentation and Methods for Astrophysics · Physics 2024-11-28 Denis Barkats

The BICEP3 CMB Polarimeter is a small-aperture refracting telescope located at the South Pole and is specifically designed to search for the possible signature of inflationary gravitational waves in the Cosmic Microwave Background (CMB).…

We present the first observation of the diffuse polarized synchrotron radiation of a patch ($\sim 3^\circ \times 3^\circ$) in the BOOMERanG field, one of the areas with the lowest CMB foreground emission. The work has been carried out with…

Astrophysics · Physics 2009-11-10 G. Bernardi , E. Carretti , S. Cortiglioni , R. J. Sault , M. J. Kesteven , S. Poppi

The Large Scale Polarization Explorer (LSPE) project, funded by the Italian Space Agency (ASI), includes the development of LSPE-Strip, a ground-based radio telescope for observing Cosmic Microwave Background (CMB) anisotropies. LSPE-Strip,…

A detection of excess cosmic microwave background (CMB) B-mode polarization on large scales allows the possibility of measuring not only the amplitude of these fluctuations but also their scale dependence, which can be parametrized as the…

Cosmology and Nongalactic Astrophysics · Physics 2015-08-06 Gabrielle Simard , Duncan Hanson , Gil Holder

Observations of the temperature anisotropy of the Cosmic Microwave Background (CMB) lend support to an inflationary origin of the universe, yet no direct evidence verifying inflation exists. Many current experiments are focussing on the…

Studying the polarization and spectral distortion of the Cosmic Microwave Background (CMB) in tandem with intensity fluctuations of the Cosmic Infrared Background (CIB) allows us to verify our assumptions on cosmic inflation and investigate…